Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230087lightly pollutedexcellent101excellent
220094lightly pollutedexcellent121excellent
2100101moderately pollutedexcellent121excellent
200081lightly pollutedexcellent131excellent
190042goodexcellent91excellent
180025goodexcellent61excellent
170021goodexcellent51excellent
160023goodexcellent41excellent
150011excellentexcellent21excellent
140011excellentexcellent31excellent
130012excellentexcellent31excellent
120017excellentexcellent41excellent
110031goodexcellent91excellent
100066lightly pollutedexcellent131excellent
090078lightly pollutedexcellent161excellent
080058goodexcellent101excellent
070042goodexcellent61excellent
060046goodexcellent101excellent
050047goodexcellent91excellent
040046goodexcellent81excellent
030053goodexcellent101excellent
020062lightly pollutedexcellent131excellent
010065lightly pollutedexcellent121excellent
000071lightly pollutedexcellent141excellent